CVE-2021-3766 Explained : Impact and Mitigation
Learn about CVE-2021-3766 involving Prototype Pollution in vincit/objection.js, its impact with a high severity score of 7.5, affected versions, and mitigation steps to secure systems.
A detailed overview of the CVE-2021-3766 highlighting the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2021-3766
This section delves into what CVE-2021-3766 entails.
What is CVE-2021-3766?
CVE-2021-3766 involves a vulnerability in objection.js, specifically related to Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution).
The Impact of CVE-2021-3766
The vulnerability has a high severity base score of 7.5, allowing attackers to compromise the availability of affected systems without requiring privileges.
Technical Details of CVE-2021-3766
In this section, we explore the vulnerability in more technical depth.
Vulnerability Description
objection.js is prone to Prototype Pollution due to improperly controlled modifications of object prototype attributes.
Affected Systems and Versions
The vulnerability affects vincit/objection.js versions prior to 2.2.16.
Exploitation Mechanism
Attackers can exploit this vulnerability via a network with low attack complexity, potentially leading to a high impact on availability.
Mitigation and Prevention
Here we discuss steps to mitigate the risks associated with CVE-2021-3766.
Immediate Steps to Take
It is crucial to update vincit/objection.js to version 2.2.16 or above to eliminate the vulnerability.
Long-Term Security Practices
Implement secure coding practices and regular security audits to prevent similar vulnerabilities in the future.
Patching and Updates
Stay informed about security patches and updates for all software components to ensure protection against known vulnerabilities.